A massive sinkhole opened inside the National Corvette Museum early Wednesday morning, swallowing eight cars and sending officials into a frenzy trying to lift the muscle cars to safety.

The sinkhole began opening just before 6:00 AM at the Bowling
Green, Kentucky museum. Officials were tipped off when the
security alarm went off. No one was hurt in the accident.

“No one was in or around the museum at the time,” the
museum said in a statement. “The Bowling Green Fire
Department arrived on the scene and secured the area. The Fire
Department has estimated the size of the hole is 40 feet across
and 25-30 feet deep.”

Images taken at the scene show two cars in the hole, yet museum
staff said eight Corvettes had fallen into the sinkhole. Six of
the cars were owned by the museum and two were on loan from
General Motors.

The hole developed in an area known as the Sky Dome. Engineers
are examining the surrounding geology to determine if there is
any risk of the hole worsening.

“It's pretty significant,” museum executive director
Wendell Strode told USA Today. “Before we do anything, like
remove the other cars, we want that assessment, so we know if
there's any structural damage to the Sky Dome.”

The following cars were involved in the incident:

1962 black Corvette

1984 PPG pace car

1992 white 1 millionth Corvette

1993 ruby red 40th anniversary Corvette

1993 ZR-1 Spyder on loan from General Motors

2001 Mallett Hammer Z06 Corvette

2009 white 1.5 millionth Corvette

2009 ZR1 "Blue Devil" on loan from General Motors

There was no official estimate on how much the damage would cost,
although Strode told the Bowling Green Daily News that the
expense is likely near $1 million. Officials are also unsure of
how long it will take to repair the museum.

“Safety will be paramount, but we will also want to save the
cars as fast as we can,” Strode said. “Every car has a
story behind it. There's been tears shed back there this
morning.”

What caused the sinkhole is unknown, but much of Kentucky sits on
top of carbonate bedrock, where karst conditions are known to
develop. Karst is vulnerable to developing sinkholes, sinking
streams, caves, and other conditions that do not bode well for
the buildings at the surface.

“Dissolution sinkholes form over long periods of time, with
occasional episodes of more rapid subsidence or collapse,”
noted the Kentucky Geological Survey. “It is the collapse of
the loose cover over the bedrock or soil that causes the problem.
Sometimes the collapse will occur in an area with no indication
of previous subsidence.”

Images and video of the incident quickly went viral Wednesday,
with Corvette aficionados getting in touch with Butch Hume,
president of the Louisville Fall City Corvette Club.

“I think anybody who has a Corvette was stunned when they
heard that. Are you kidding me?” Hume told the Kentucky
Courier-Journal. “We're all feeling the same way. Oh man,
that's a shame.”